Dish-washing machine.



7.77 fin/65S;

W. HEERIVIANS. DISH WASHING MACHINE. APPLICATION man NIM/16,191?.

Patented Apr. 9, i918,

3 SHEETS-SHEET l.

T. W. HEHMANS DiSH WASHING MACHINE, APPLlcATloN msn ivm/16.191?.

'p Patented Apr. 9,1918,

3 SHEETSSHEET 2.

T. W. HEERIVIANS.

DISH WASHING MACHINE. APPLICATION FILED IVI/w15, i911.

Q/vli@ y Patented Apr. 9, QIQ. v Y 3 SHEETS-SHEET 3.

,Zim/23732@ 7i f THABDEUS W. HEER/ANS, 0F EVANSTGN, 'ILLENGI Specification of Letters Patent.

Application lecl May 1%, 195.7. Serial No. 158,955.

To all whom t may concern:

Be it known that 1, THAnonUs W. Hennnaivs, a citizen of the United States, and a resident of Evanston, in county of Cook and State of illinois, have invented certain new and useful improvements in Dish- 7Vilashing Machines; and .l do herebv7 declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the characters of reference marked thereon,

which torni a part of this specification,

IThis invention relates to improvements in washingi achines for washing dishes, silverware, glasses and other articles, and the invention consists in the'combination and arrangement of the parts shown in. the drawings and described in the specilication, and is pointed ont in the appended claims.

The invention relates in part to a novel washing mechanism of the general character shown in my cti-pending application for U. S. Patent, Serial No. 9824.3, filed May 1S, 1916. wherein the container is divided into a lower well or compartment for limiting` 'the quantity7 of the wash water used and an upper washing compartment, with means for elevating the water from said well to the top of the washing compartment, wncreby the dishes are washed by water which flows always in one direction, or downwardly, the washing,r compartmentbeingr sepa ated from the well by a series ot' wall members which are constructed and arranged to provide indirect passageways irom the washing compartment to the lifting device, which are so formed as to provide settling, skimming and straining means to remove the particles from the wash water so that the water returning to the water elevating means for refuse is clean.

T he well is formed in aieduced bottom of the container so as to limit the amount of wash water handled and to correspondingly limit the amount o't fuel used to heat the water; it being` apparent that inasmuch as the water is cleaned between itsperiods ol' use, a less volume of water may be used.

The invention relates also to a novel means for supporting the container in such a rela`y tion to a kitchen sink or like fixture that the machine when not in use occupies normally unused space, so as to make the machine practicable in a small kitchen, the support being soarrangcd that the machine is immediately available when needed. ln this respect 'the mounting or supporting frame for the container is adapted to be adjusted to any height of sink drain board and isso constructed as to require no plumbing or litting for connection to the sewer. The machine is also preferably provided with a burner whereby the water is kept hot and is not unduly chilled by coming in Contact with the cold dishes.

The invention also relates power means `for driv the operative elements of the .vasbi4 machine,` so constructed and arranged as to permit the container to be swung from a lower to a higher position, either to bring thekcontainer into position for removing dishes from or placing; the dishes in said container, or for rais ing 'the container so as to drain 'the water to a novel therefrom into the sink.

Fig. 5 is a detail ot the water drain valve fixture.

Fig. 6 is a detail of the locking latches.

As shown in the drawings, 10 designates a container, preferably made et' sheet metal. lt is provided with a removable cover ll. and the bottom wall 1,2 thereot formed with a depending reduced portion 13 which constitutes awell or compartment for the wash water. lll designates a stand pipe that is arranged centrally within the container. The lower end of said pipe is formed with adownwardlv open bell mouth 15, arranged centrally/within the well. The upper end of the stand pipe extends to the top et the container and said upper open end of 'the stand pipe receives the lower end oi a hollow bearing' member 16, which is lined to and depends from the removable clover and is formed to provide oriices lr' of an une brella spray nozzle in a manner generally similar to the construction shown in my aforesaid application. As herein shown said bearing member 16 is provided with an upwardly extending threaded neck portion i8 'that extends through the sheet metal cover il and is loclted thereto by means of upper and lower nuts 19, 20, respectiyely7 threaded to said neck portion i8. 2l designates a helical impeller that is rotatively mounted Within. the bell mouth 15 of the stand pipe and which serves when rotated at suitable speed., to lift the Wash Water upwardly through the stand pipe for dischargethrough the oriiees 17 oli' the nozzle. The impeller is mounted on the lower end of a vertical, rotative shaft 22 which extends upwardly through the stand pipe and is rotatively mounted at its lower end in a bearing 23 carried by ribs 554-' which are made integral with the bell mouth of the stand. pipe. The shaft cxtends at its upper end into a sleeve 25 that vis rotatively mounted in an internal bearing of the member 16.' Said shaft is provided with a squared or other polygonal portion 29 which tits a like shaped portieri of the opening of the sleeve, Whereby the sleeve is non-rotativ'ely locked to the shalt. Surrounding said sleeve and located in a yoke portion 2l' of the member lo is collar Q8 which is .locked to the sleeve by a set screw 30, said collar serving as a shoulder to hold the sleeve from rising in its bearing. Connected to or formed integral with lsaid sleeve 2o is a driving' wheel 32 which,

as herein shown, is grooved for engagement with a cylindric drivingbelt, hereinafter described.

Surrounding the bell mouth l5 ot the stand pipe and rising from the bottom of the well is an anlu'llar or ring like shell which is formed at its upper edge to provide an inturned ledge 3G. The internal dialne- .ter of said ledge is slightly greater than the external diameter of the base of the stand pipe, so that said stand pipe may be passed through the opening,l surrounded by the ldge, and thus ren'xoved from or inserted 1 itc place. Exterior to said annular shell 35 is an annular skirt 38 which .is supported by Webs 39 integral therewith and with the shell Said slrirt terminates some distance above the bottom ot the well and its lower edge constitutes a skimming edge, for a purpose hereinafter described. The shell is surmounted by a dome shaped cover plate l0, whichI s closely over and upon the upper edge of the sil-ell and is formed with a central upwardly extending' neck lll 'that surrounds the stand pipe, whereby said plate may be removed upwardly over the stand pipe. Luge l2 serve to center the dome shaped plate on said shell. Formed integral with the bell mouth of the stand pipe are n; t :escaner:

a series of Webs l5 which carry an integral ring 46 that rests on the ledge 36, and said ring and a shoulder 48 on the stand pipeV constitute a support for an annular screen 50 that bridges the annular open space between the stand pipe and the 'shell The stand pipe is supported on the ledge 36 through the medium of the Webs 45 and ring 46. er ring 51 is supported on the bottom of' the Well, and between said ring and integral therewith and with the shell 35 below the hnpeller 21, extend radial Webs 52 that serve as means to breali up the body of Water in the Well when the impeller is rotated and therefore prevent the body of Water from being merely swirled. by the impeller7 with a result of losing the lifting etlect thereof.

The dishes are contained in a basket-like holder 55 which is removably supported in the container, it being adapted to be supported on the bottom Wall l2 and on said dome shaped plate 4.0. lt may be made of any suitable form and is of a size to lit closely within the container. A. silver rack 564is supported on the bottom of the holder around the stand pipe and is adapted to be removed upwardly over the 'stand pipe.

The operation or" the machine is generally like that ot the machine illustrated in m`y aforesaid application. lVater is placed in the container to about the level indicated in Fig. The Water may be heated before it is placed in the container or the Water may be heated after being placed in the container and maintained hot by a suitable burner hereinafter described. rlhe iinpeller 2l. is rotated "apidly through the medium et power applied tothe pulley 32 and acts to :torce the water upwardly through the stand pipe, troni whence it is discharged through the orifices of the nozzle and falls down amongand through t-he dishes or other articles in the holder. The water utter passing the dishes finds its Way to the well tl'iroug'h the indirect ga;- sages formed between the skirt 38 and shell and through the screen 50. rllhe solid. non-floating particles carried by the Water settle by gravity to the lower part ot the Well exterior to the shell 35, While the solid., lighter particles, which float, are prevented from passing; beneath the-odge oit' the skirt 38, so that thereby said particles maybe said to be skimmed from the water by said edge. Such particles as may, by reason ol the agitation ot' the waiter pass said slrirmning;r edges are removed or separated from the water by the screen The water returned to the inipeller for reuse. therefore, is clean water and the dishes are not subjected to the application oir an emulsion of the water and solids, such as would occur it the particles were not separated from the Water between the periods oit use thereof.

The Water is preferably heated by a burner naeaoes located below the container so that it may be kept at a suitalo` T high temperature, regardless ol the chilling effect due to contact thereof with cold dishes and like articles.

The machine is of such size that it is adapted to be placed beneath an ordinary sink in a kitchen so that when not in use it occupies space that otherwise is of little value. In order that free access may be had to the machine for placing the dishes and other articles thereinto and for removing them and also for emptying, water from the machine, said machine is movably supported on a frame that rests preferably on the floor, beneath the sink, and embraces a swinging hanger-like arrangement which permits the machine to he shifted to the dotted line positions shown in Fig. 1; the intermediate position being one at which the machine may be charged with and emptied of articles to be washed, and the upper position beingsr one at which the water may be drained from the machine into the sink S. rlhe frame for this purpose is made. as follows :#58, 58 designate side frame members which are connect-- ed at their upper ends by a cross bar 59 and at their lower ends by tie rods t3() which extendthrough spacing; tubes (5l and coperate with nuts (332 threaded to the ends of the rods to space and rigidly connect the side frame members. They are also connected in rear of the machine by means of a motor supporting board (53 that extends betwecnand is supported on and attached to brackets (54 integral with the said frame members. ArrangedA just inside each side frame are upper and lower pairs of t.shaped levers 6G, 67 respectively; thelevers 66 being inside ot the levers 67. The shorter arms ot' the upper lever 66 are hinged at their ends to studs 68 on the side frames near lthe upper ends of the latter and the ends of lthe longer arms of said levers G6 are hinged,l by means of studstl, to ears 70 of hanger brackets 71 that are secured t0 the container near the bottom of the latter. The ends of the shorter arms of the lower levers 67 are hinged by studs 72 to downwardl i extending arms 73 fixed to or made integral with the brackets 71. The said arms 73 are odset outwardly from the brackets 71 for a purpose hereinafter to be explained and said arms are strengthened by ribs, as best shown in Figs. 1 and 2, rilfhe longer ends of said lower levers 67 are hinged by studs 75 to enlarged portions 76 of the side frame members near the plane or' the top of the container 10. The said longer arms of the lower levers are provided with rigid, rearwardly..directed arms 8O which are connected by ilinks 81;".y 81,i

Ithrough the medium of hingeI studs 81"-, to

arms of the lower levers 67 .are connected to the frame, are Amounted crank plates 82 which are connected by bolts 83, that extend through s'aid plates and bosses thereof, to the arms 80, as best shown in Figa e, said bolts being spaced a substantial distance radially from the studs 75. rlhe said crank plates, herein shown as made triangular, are provided with studs Se which are disposed on said crank plates on the sides of the axes of the hinge studs remote from the bolts S3. Between the studs 8l and fixed parts of the frame at theI lower side thereof, as herein shown one of the tie rods 60, are stretched counterbalancing springs 85, consisting; oi' spiral tensile springs. The said bolts S32-l, located as shown a substantial distance. from the hinge studs in connection 'with bosses 83. constitutes a rugged connection between tlnl crank plates and the arms of said lower levers (37 and ample leverage for a purpose hereinafter referred to. The crank studs Si are furthermore so related to the hinge studs 75 and to the bolts Sil that when the container is in its normal lower-most position said studs Si are located slightly 'forwardly ot a line passing through the rear tie rod G0 and the hinge .studs T5, so that the tensile energy ol the spring-s acts on the upper ends ot' said levers (3T in a manner 'tending'.to hold the container in itsl downward and rearmost position.

The said container is locked in its rearmost position by nieans of locking latches SS that are pivoted `in any suitable manner at the rear end ol the machine to cars or lugs SS) ou the motor supporting table G3. As herein shown said latches comprise the arms of a bail-like member. the central portion 9() of which lies over the motor table 6?. The said central portion ot' the latch arms is raised upwardly above the level ol the pivotsl thereof. and is borne upon by a spring 91 attached to the motor suppmtingr board or table 63. 'lhe forward ends of said latches are formed to provide upwardly openiim lockingnotches 92 adapted 'to enl gage studs Sill fastened to and extending laterall)Y from the sides of the container just below the over thereof. Said latches are continued forward beyond said notches to provide operating extensions 94 by which they mayv be operated to release them from said studs: and the spring 91 acts on said connecting' member of the latches in a way to hold the latches upwardly against said studs 93.

ln the operation of swinging' the machine from its normal lowermost position to either of the positions shown in dotted lines Fig. l, the upper and lower levers 6G, 67 swing respectively, on the hinge studs 68 and 75, and the connection of the links 81 between the short right angle arms 80 of the lower levers and the shorter armsy ofthe upper lili levers provide a parallel lever motion which maintains the container of the machine always in an upright position.

The machine is locked in the intermediate dotted line position` or that beyond the drain board of the sink. by engagement of .the notches 92 ot the latches 88, with studs 99 which may constitute extensions of the hinge studs 81 by which the links 81 are connected to the short. arms of the upper pair of levers (56. When the machine is raised to the highest position. shown in dotted line Figi'. l.. the crank bolt S3 olf' the crank plate 82 swings dowi'iwardly just short of the center of the hinge stud l5. so Vthai the said springs S5 act against. the crank plate and its driving connection to the rigid arms of the lower pair oi2 leife'rs to hold the machine in its upper position. lWhen the machine occupies this position, the longer arms of the upper pairs of levers 67 are seated in 'the oliset portions of the arms of the brackets 7l, against the bottoms of said otlset portions, so that the said levers act against the bottoms of said offset ortions as stops to limitthc action oi' the springs 85.

The water may be heated and lrept het in the container through the medium of burners which are connected 'to a gas supply pipe '106. said burners being; located immediately beneath the reduced bottoni or the well of the container. The burners are supported in any suitable manner on the 'frame and remain stationary when the machine is swung forwardly and upwardly.

Preferably means are provided for adjusting the machine to'diiierent heights of sinlrs. This is shown as eli'ected in the present 4instance by providing` screw tl'ireaded legs 107 which are threaded vthrough bosses 108 in the side members of the frame and said legs may be locked thereto by locking nuts 109. with rollers 11() in order to facilitate movement of the machine from. place to place on the floor.

Preferably the machine motor driven and a driving arrangement is provided which permits' the machine to be swung away from the driving' mechanism and to be swung backwardly into connection therewith by means which automatically .connects the driving mechanism to the moving parts of the machine. The construction shown by which this result is effected is made as ollows:

designates an electric motor which is mounted on the motor table 63 and is supported thereon by upright angle supporting members 11G which engage with. and are attached. to the usual feet of a horizontal motor to hold 'the motor in an operative upright pesition. A pulley 117 fixed to the upper end et the armature shaft lies in the The rear vlegs may be provided rotatifely niouni'ciil on axes carried by the outer ends of arms 122 that hinged-at 123 to the top 'cross member (51 before referred to. The said arms 122 are provided at their ends. and at their proximate sides7 with upwardly extending lugs 125, and the cross frame G1 is provided with forwardly extending arms 126 which terminate in downwardly turned lugs 127. 128 designates a curved guide rod. which is fixed in any suitable manner at its ends to the lugs l12?' and curved around the driving pulley and is extended freely through said up turned lugs of the arms 122. Surrounding said rod betweensaid arms 122 is a spiral expansively acting spring 13() which has a norma-l tendency to force the arms away from cach other.

lillhen the washing machine is in its lowermost normal position for operation, the pulley engages the bi ght of the belt between 'the idler pulleys 120, in the manner shown in Fig. 3, so as to effect a driving conneclion oi 'the belt with said pulley= and the spring 130 at this time serves to hold the belt tigl tly irgainst the pulley. "When the I pulley is moved away from the belt, however, in drawing the machine forwardly and upwardly, the spring 13() serves to force the yarms 122 away from each other and taire up the slack due to the bight in the belt, so that the belt will run tight about the motor and idler pulleys withoutA a tendency to jump olf said pulleys. Stops 134, 134, formed on the ends of arms which spring' rearwardly from the lugs 127 act on the lugs 125 to maintain the spring 130 in central or symmetrical position with respect lows:

137, 137 designate pipes that are'conneeted in any suitable manner with the well through the bottom wall thereof andere formed centrally ot the well to provider..

valve chamber 138 to receive a rotating plug 139 that is provided with oppositely located ports which when the plug is rotated 9() degrees from the position shown in Fig. 5 are brought into register with the passage 137. As shown in Fig. 5, the pipes 13? coin- Sdi Leonesa r municate with the well through hollow screws 140 that fasten the valve casting, including the chamber 138, and the pipes 137, to the bottom of the well, T he plug commuicates'with outlet orifice 1-/11 formed in a'radial handle member 142 whereby the drain water is directed laterally from the axis et the plug. ln adaptinnP the machine to dirierent sinks the lateral distance tri-n1 this axis ot the plug to the sinh is likely 'to vary, and to provide for this contingency, l provide the combined nozzles and handle h an extension trough 143, which may made of sheet metal and slidably fitted thereto. Said drain trough is formed with stops 14% at its ends to limit its sliding movement withrespect to the handle and nozzle and is also provided. with linger pieces by which it may be conveniently shifted into proper adjustment. rlhe trough is made of such length that the drain will he adapted to any sinlc.

l claim as my invention:

1. A washingl machine comprising a container and its washing mechanism, a frame therefor, and a system of swinging, parallel moving levers pivoted to said frame and to the container by means which support the container normally below the level oi: the pivots which connect said levers to the frame, said levers adapted to be swung outwardly' and upwardly away from the frame, and having means to hold the con tainer upright in said last named position.

2. il. washing machine comprising a container and its Washing mechanism,l a frame therefor, and a system of swinging, parallel moving levers pivoted to said frame and to the container by means which support the container normally below the level of the pivots which. connect said levers to said frame, said levers adapted to be swungr outwardly and upwardly away from the frame, and having means to hold the container upright in said last mentioned position, with means tohold the container in its outwardly swung or extended position.

3. A washing machine for the purpose sot forth comprising a container and its washing mechanism, a support therefor comprising n, frame, upper and lower pairs of levers, the upper pair of levers beingl pivoted at their upper' ends to the frame and at their lower ends to the container and the lower pair of levers being pivoted at their lower ends to the container` and at their upper ends to the trarne, means connecting said levers 'to cause them, when swung on their pivots, to maintain the container in upright position when the container is drawn outwardly from and above the frame, and counterbalaneing means for the moving parts.,

4. A washing machine 'for the purpose set forth comprising a container and its wash- 'wardly from and above the ing mechanism, a support therefor comprising` a frame, upper and lower pairs of levers, the upper pair of levers being pivoted at their upper ends to the frame and at their lower ends to the container and the lower pair of levers being pivotcd at their lower ends to the container and at their upper ends to the trame, means connecting said levers to cause them, when swung on their pivots, to maintain the container in upright position when the container is drawn out-- frame, latch means, to loch the trarne in its normal lower and `outwardly swung positions, and counterbalancing means for the movingv parte.

v 5. A washingmachine for the purpose set forth comprising' a container and its washingr mechanism, a support therefor compris ing a frame. upper and lower pairs of levers, the upper pair of levers being pivoted at their upper ends to the frame and at 'their lower ends to the container and the lower pair of levers being pivoted at their lower ends to the container and at their upper ends to the frame, linlrs connecting said levers to provide a parallel lever movement to hold the container in upright position when the container is swung outwardly and upwardly trom said frame, and eounterbalancing springs connected to said frame and to said system of levers.

(l. A washing' machine comprising a container and its washing mechanism, a. frame therefor comprising,r fixed side members. upper and lower pairs of swinging curved leversr` with the upper ends et the upper pair of levers pivoted to the trame and with the lower ends thereof pivoted to the container, and with the upper ends of the lower pair of levers pivoted to the iframe and the lower ends thereof to the container, the upper ends of the lower levers being provided with rigid, angularly disposed arms` links Connecting said arms with the upper ends of the upper levers, and counterbalaneing; means-connected to the frame and the system of levers.,

7. A washing' machine comprising a container and its washing mechanism, a `support for the-container embracing a iXed frame, upper and lower pairs of swingingA levers, with the upper ends of the pairs of levers pivotcd to the frame respectively at vertically spaced points and with the lower ends ot' the pairs ot levers pivoted to the container respectively at vertically spaced points, links connecting said upper and lower pair of levers to constitute a system of parallel movingr levers constructed t0 maintain the container upright when swung,l outwardly and upwardly, and counterbalencino; means between the frame and said system of levers.

8. A washing machine comprising a container and its washing mechanism, a frame in which the container is 'mounted einbracing upper and lower pairs of swinging levers, with the upper ends of the pairs of levers pivoted to the frame respectively at vertically spaced points and with the lower` ends of the pairs of levers pivotecl tothe container respectively at vertically spaced points, means connecting said levers to constitute a system of 'parallel moving levers arranged to maintain the container upright when swung outwardly and upwardly, and latchingr means to lock the container in its normal lowermost position, with means coyiaerating with the latching means for lockingv the container when swung outI msm, a swinging hanger hinged to the frame and to the container and constructed lwith means 'to carry the container, always in an upright position, awayfrom the frame, a motor mounted on the frame and provided with a drivin pulley, an operating pulley connected to t ie Washing mechanism, a belt trained about the motor pulley and provided with a eight to engage partially around the operating pulley, and means to take up the slack in the belt, due to said eight, when the operating pulley is movedA away from the beit.

l. A Washing machine comprising a lined trame, a container and its Washing mechanism, a swinging hanger hinged to the frame and to the container and com structed with means to carry the container', always in au upright position, away from the frame, motor mounted on the frame and provided with a driving pulley, an operating pulley connected to the Washing mechanism, swinging arms at the sides of the operating pulley having guide pulleys, a eelt trained about said motor pulley and about the guide `pulleys to form a 'night to partially enga-Je around the opera-ting pulley, and means tending to force said arms from each other 'to straightensaid anal to the container and constructed with means to carry the container, always in an 'upright position, away 'from the trame, a motor mounted on the frame and pro vided with a driving pulley, an operating pulley connecterl to the washing mechanism, swinging arms at the sides of the operating pulley having guide pulleys, a belt trained about said motor pulley and about the guide pulleys to form a biglie to partially engage around the operating pulley, a fixed rod extended through lugs on said levers and a compression spring surrounding the rod and tending to separate said arms.

13., ln a washing machine, a lined frame, a movable support in the frame for said machine, a washer mechanism driving pulley carried by and movable with the machine, a motor mounted on the frame, and having a driving pulley, a driving belt trained about said driving pulley and engaging the operating pulley, and means to automatically disengage said 'beit from and engage it' with the said operating pulley lwhen said machine and its operating pulley are moved, respeo tively, from and toward said fixed iframe.

14e. ln a Washing machine a fixed frame, a movable support in the frame orsaitl machine, a washer mechanism operating pulley carried by and movable with the machine, a motor mounted on the frame and having a driving pulley, a driving,r belt trained about said diiving pulley, guide pulleys at the sides of the operating pulley movable toi ward and away from each other about which said belt is trained and arranged to form between them in the belt a bight to engage the operating pulley and a spring acting against the tension otsaid belt tending to force said pulleys apart.

'In witness vvliereoitl l claim the foregoing as my invention, I hereunto append my Signature in the presence of two witnesses at Chizago, illinois, this 14th. day ot' May, i911.

THADDEUS W. HEERE/LANS.

Witnesses 2 WV., HALL, A. Waarnemer..

rafa 

